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转染乙酰胆碱结合蛋白基因到昆虫细胞的研究 被引量:1

Research of Transfection Acetylcholine Binding Protein cDNA into Insect Cells
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摘要 海兔(Aplysia californica)乙酰胆碱结合蛋白(Ac-AChBP)是研究烟碱型乙酰胆碱受体(nAChRs)的结构模板之一,它的高效表达对研究神经性相关疾病具有重要的意义。高效表达关键是要有高的转染效率,通过构建含(Ac-AChBP)基因的昆虫杆状病毒表达载体Bcmid,对脂质体转染Bcmid的多个条件进行探索,研究发现,当采用对数生长中期的细胞、细胞密度为2.5×106cells/mL,质粒DNA浓度为4.5×10-2g/mL和脂质体浓度为0.8 mL/L时,转染效率达到较高值,滴度为2×107±10%pfu/mL,同时证明高滴度病毒具有高的表达效率,而且表达蛋白具有生物活性。 Acetylcholine binding protein from Aplysia californica (Ac-AChBP) can provide a structural basis for understanding the structure and function of nicotinic acetylcholine receptors (nAChRs). Its high level expres- sion is important to study neuropathic diseases, and high level expression need highly effective transfection. Bacmid containing Ac-A ChBP eDNA was constructed, and transfected insect cells through lipid. It was found to reach a high-titer (2×10^7±10% pfu/mL) at cell density of 2.5×10^6 cells/mL, recombinant Bacmid DNA con- centration 4.5×10^-6 g/mL, and lipid CellfeetinR II concentration 0.8 mL/L. It was also showed that high-titer virus had high level expression and the expressed recombinant Ac-AChBP had bioaetivity.
出处 《生命科学研究》 CAS CSCD 北大核心 2014年第1期1-5,38,共6页 Life Science Research
基金 国家自然科学基金(41366002)资助项目 国家国际科技合作专项(2011DFR31210)资助项目 海南省社会发展科技专项(SF201328)资助项目 海口市重点科技计划(2013-16)资助项目 长江学者和创新团队发展计划(IRT1123)资助项目 海南省研究生创新科研课题
关键词 海兔乙酰胆碱结合蛋白(Ac-AChBP)基因 载体构建 脂质体转染 转染效率 表达效率 活性检测 acetylcholine binding protein eDNA from Aplysia californica (Ac-AChBP) vector construction lipid transfection transfection effciency expression efficiency bioactivity test
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参考文献16

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